Sökning: "Accelerator"

Visar resultat 1 - 5 av 157 avhandlingar innehållade ordet Accelerator.

  1. 1. Accelerator-driven systems safety and kinetics

    Detta är en avhandling från Stockholm : KTH

    Författare :Marcus Eriksson; KTH.; [2005]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Nuclear physics; Kärnfysik; NATURAL SCIENCES Physics Nuclear physics; NATURVETENSKAP Fysik Kärnfysik;

    Sammanfattning : The accelerator-driven system (ADS) is recognized as a promising system for the purpose of nuclear waste transmutation and minimization of spent fuel radiotoxicity. The primary cause for this derives from its accelerator-driven, sub-critical operating state, which introduces beneficial safety-related features allowing for application of cores employing fuel systems containing pure transuranics or minor actinides, thereby offering increased incineration rate of waste products and minimal deployment of advanced (and expensive) partitioning and transmutation technologies. LÄS MER

  2. 2. Accelerator-driven systems source efficiency and reacitvity determination

    Detta är en avhandling från Stockholm : KTH Royal Institute of Technology

    Författare :Andrei Fokau; KTH.; [2010]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURAL SCIENCES Physics Nuclear physics; NATURVETENSKAP Fysik Kärnfysik;

    Sammanfattning : Accelerator-driven systems (ADS) are being investigated and designed for transmutation of the long-lived nuclear waste. Application of ADS allows to safely transmute large fractions of minor actinides (MA) per reactor core, while the fraction in critical reactors is limited to a few percent due to the safety constraints. LÄS MER

  3. 3. Beam-Based Error Identification and Correction Methods for Particle Accelerators

    Detta är en avhandling från Chalmers University of Technology

    Författare :Tobias Persson; Chalmers tekniska högskola.; Chalmers University of Technology.; [2014]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Accelerators; Accelerator Optics; CLIC; CTF3; Emittance; Feedback; LHC; Pulse Compressor; Radio Frequency; Two-beam acceleration;

    Sammanfattning : Modern particle accelerators have tight tolerances on the acceptable deviation from their desired machine parameters. The control of the parameters is of crucial importance for safe machine operation and performance. This thesis focuses on beam-based methods and algorithms to identify and correct errors in particle accelerators. LÄS MER

  4. 4. Accelerator physics studies of the MAX-lab storage rings

    Detta är en avhandling från Chalmers University of Technology

    Författare :Magnus Sjöström; Lunds universitet.; Lund University.; [2009]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Electron accelerator; linear optics; storage ring; characterisation; synchrotron radiation; emittance; intrabeam scattering; electron beam profile;

    Sammanfattning : Popular Abstract in Swedish Synkrotronstrålning genereras när laddade partiklar som färdas med relativistiska hastigheter böjs av i ett magnetfält. Under accelerationen som böjningen utgör genereras synkrotronstrålning i en smal kon i partikelns framåtriktning. LÄS MER

  5. 5. Accelerator Mass Spectrometry of 36Cl and 129I Analytical Aspects and Applications

    Detta är en avhandling från Chalmers University of Technology

    Författare :Vasily Alfimov; Uppsala universitet.; [2004]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Environmental technology; Accelerator Mass Spectrometry; iodine-129; chlorine-36; gas-filled magnet; radioactive tracer; Arctic Ocean; Nordic Seas; North Atlantic; thermohaline circulation; Sellafield; La Hague; Miljöteknik; TECHNOLOGY Other technology Environmental engineering; TEKNIKVETENSKAP Övriga teknikvetenskaper Miljöteknik;

    Sammanfattning : Two long-lived halogen radionuclides (36Cl, T1/2 = 301 kyr, and 129I, T1/2 = 15.7 Myr) have been studied by means of Accelerator Mass Spectrometry (AMS) at the Uppsala Tandem Laboratory.The 36Cl measurements in natural samples using a medium-sized tandem accelerator (~1 MeV/amu) have been considered. LÄS MER